Lap joint waterproof structure of aluminum-magnesium-manganese roof system

The invention discloses a lap joint waterproof structure of an aluminum-magnesium-manganese roof system. The lap joint waterproof structure comprises a lap joint plate, the roof system and waterproof glue. The lap joint plate is arranged at the concave position of the roof system, the lap joint plate is connected with the roof system and covers the concave position of the roof system, and the space between the lap joint plate and the roof system is filled with waterproof glue. The lap joint plate is arranged at the concave position of the roof system, the concave position is covered with the lap joint plate, meanwhile, the space between the lap joint plate and the roof is filled with the waterproof glue, the concave position can be filled, the situation that rainwater is accumulated at the concave position to cause water seepage is prevented, and meanwhile the lap joint plate can play a role in enhancing the structural strength of the roof; and the waterproof glue can protect the sunken part, replacement is n